Answer:
5. There are 4 coins in every punch
6. There are 5 coins in every punch
7. There is 1 coin in every punch
8. There aren't coins in the punches
Step-by-step explanation:
5.
[tex]4x+2=18\\4x=18-2\\4x=16\\x=\frac{16}{4} \\x=4[/tex]
6.
[tex]3x+5=20\\3x=20-5\\3x=15\\x=\frac{15}{3}\\x=5[/tex]
7.
[tex]2x+10=9+3x\\x+-3x=9-10\\-1x=-1\\x=1[/tex]
8.
[tex]2x+14=14\\2x=14-14\\2x=0\\x=\frac{0}{2}\\x=0[/tex]
